Optical Isomerism and Order of a Reaction MCQs

By: Prof. Dr. Fazal Rehman | Last updated: May 22, 2025

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1. : Which of the following is the number of configurational isomers of molecules having (n) different chiral carbons?



2. : For a molecule with two like chiral carbon atoms, which of the following is the number of optically inactive forms?



3. : Which of the following will be the unit of rate constant for the second order reaction?



4. : The order of reaction is _______ if the rate law is given by: Rate = k [SO₂]¹ [SO₃]⁻⁰·⁵



5. : An example of optically active compounds without chirality is ______.



6. : Not an optically active compound is ______.



7. : The reaction rate is defined as the rate at which what is the concentration of the reactants with time or the concentration of products with time?



8. : For a molecule with two like chiral carbon atoms, which of the following is the number of optically active forms?



9. : Which of the following is the number of stereoisomers for CH₃–CHOH–CH=CH–CH₃?



10. : The Reaction kinetics deals with the study of which of the following?



11. : Which of the following is the unit of rate of reaction?



12. : The reaction rate constant may be defined as the rate of the reaction when which of the following is the concentration of every reactant?



13. : Which of the following is the unit s⁻¹ is the unit of rate constant for reaction of the order?



14. : The optical isomers that are possible in a compound with one chiral carbon are _______.



15. : The compound that would show optical isomerism is _____.



16. : Which of the following is the unit L mol⁻¹ s⁻¹ is the unit of rate constant for the reaction of the order?



17. : Which of the following is the number of racemic forms of molecules having (n) different chiral carbons?



 

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